Still



May @5, 1923.

J. M. MAHONEY STILL Filed April 14 Patented May 15, 1923.

were

JOHN M. MAHONEY, OF HOUSTON, TEXAS.

STILL.

Application filed April 14, 1921. Serial No. 461,294.

To all whom it may concern:

Be it known that I, JOHN M. MAHoNEY, a citizen of the United States, residing at Houston, in the county of Harris and State of Texas, have invented certain new and useful Improvements in a Still, of whlch the following is a specification.

This invention relates to new and useful improvements in a. still.

One object of the invention is to produce a still designed for refining petroleum and rangementof parts, an example of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1 is a side view of the still, and F i re 2 is an end view thereof. Re rring now more particularly to the drawings, the numeral 1 designates the boiler which has the usual tubes, (not shown) therein. This boiler has the inlet steam lines 2.2 and outlet steam line 3 and is also equipped with the safety valve 4. The boiler also has the outlet vapor line 5 and is provided'with manholes 6. 6 and 7. Beneath the boiler there is a settling vat which is connected with, and forms the bottom of the boiler. This vat has the Sides 8.8, the ends 9.9'and'the bottom 10. In horizontal cross section the vat is prefcrably of a general rectangular form.

The bottom is oval in contour and also declines each way from an intermediate point so that the settlings and foreign deposits will gradually move towards and collect at the ends of the vat. At each side of each end there is a sight gauge, by

means of which the approximate quantity of the deposits may be ascertained. Leadingdownwardly from each end at each side,

there is a drain pipe 12, each drain pipe being controlled by a gate valve 13. On each side there is an outlet pipe 14, to which the corresponding drain pipes are connected beneath the gate valves 13 thereof. Une end of each'outlet pipe is controlled by an outlet valve 15 and connected into the other end thereof there is a steam line 16 wh'ch is controlled by a shut-off valve 17. Should the outlet pipes become clogged the gate valves 12 may be closed and the outlet valves 15 opened and the shut-off valves 17 may then be opened and the clogging material blown out, and the pipes cleansed, by steam pressure.

. What I claim is 1. A still including a boiler whose bottom is formed with a collecting vat beneath, the bottom of said vat being oval in cross section and declining each way from an intermediate line, an outlet pipe on each side beneath the vat, valve controlled drain pipes leading from the lowest points of the bottom of the vat and connected with the re-- spective outlet pipes, a valve controlled steam line entering one end of each outlet pipe and a valve controlling the other end thereof.

2. A still including a boiler formed with a collecting vat beneath, which has a bottom that declines each way from an intermediate transverse line, a valve controlled outlet pipe on each side of the boiler and beneath it, valve controlled drain pipes leading from each end of the vat on each side and entering the corresponding outlet pipes, and means for forcing fluid under pressure through the outlet pipe.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

, JOHN M. MAHONEY. Witnemes:

WM. A. CATHEY, Louisa Carma. 

